Machine for applying adhesive material to paper.



No. 694,749. I Pnted Mar;V 4, i902. c. w. Hos. MACHINE FUR AP-PL'YINB ADHESIVE MATERIAL T0 P-A'PEH.

(Application led Apr. il. 1898.)

(No model.) 5; zs'hets-sheetl.

Patented Mar. 4,1902.

c, w. Hoses. Y MAGHINEFOH APPLYINS ADHESIVE MATERIAL T0 PAPER.y

. (Application iled Apr. 11. 189B.) (No Model.)

2 Sheets-Sheet 2.

lqwaqtu.

Wit@ E5 5E Si UNITED STATES PATENT OFFICE.

CLARENCE YV. HOBBS, OF lrVORCESTER, MASSACHUSETTS.

MACHINE FOR APPLYING ADHESIVE MATERlAL'TO PAPER.

SP'EIFICATION formingpart of Letters Patent No. 694,749, dated March 4, 1902.

Application filed April ll, 1898. Serial No. 677,].38` (No model.) 4

To all whom, t may concern:

Be it known that I, CLARENCE W. Hoses, a citizen of the United States, and a resident of vorcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in Machines for Applying Adhesive Material to Paper, of which the following is a specification, accompaniedl by drawings forming a part of the same.

My invention relates to that class of machines forapplyin g adhesive material to paper which comprise a gumming-roll running in contact with adhesive material heldin a gumbox and also in contact with the'surface of the paper to be gummed; and my invention relates vparticularly to the construction and arrangement of the gum-box; and it consists in providing improved means for adjusting the gum-boxrelatively to the gumming-roll and in certain features of construction in the gum-box, as hereinafter described, and pointed out in the annexed claims.

Figure 1 of the drawings represents the front side of the gum-box of a machine for gumming or pasting paper. Fig- 2 is an end view of the same with the driving-wheel removed on line 2 2, Fig. l. Fig. 3 is a vertical sectional view on line 3 3, Fig. l. Fig. 4i represents an end view of the gum-box opposite that represented in Fig. 2. Fig. 5 is a vertical sectional view on line 5 5, Fig. l; and Fig. 6 is aview in detail of one of the adjusting-screws by which the sides of the gum-box are adjusted toward or away from the gumming-roll.

Similar characters refer to similar parts in the different figures.

Referring to the drawings, A denotes a portion of the framework of the machine, in which a shaft B is journaled, carrying a gummingroll C and driven by a belt-pulley-B. The framework A supportsthe vertical side plates D D', provided with shoulders D2, which support the plates E E, forming the ends of the gum-box and capable of sliding on the shoulders D2 toward or away from the gummingroll C. Each of the plates E E is provided lwith lugs E2, overlapping the front edges of the plates D D and carryingadj ustable screws adjustment of the plates E E along the shoulders D2 toward or away from, the gummingroll C. Theends of the plates E E are curved coucentrically with the gumming-roll C and are adapted to lit its periphery, which is turned to a true cylindrical surface.

The inner side of each of the plates E E' is provided with ways E4 to receive the ends F of a trough F. The ends Ffare connected by the vertical plate F2, forming the front side of the gum-box,'and the horizontal plate F2, forming the bottom of the gum boX. The ends F are closely iitted to the plates E E', so as to prevent the admission of gum or paste between them. rlfhe horizontal plate F2 forms thebottom of the gum-box and is turned upwardly at F4 and brought to a thin. edge F5, which is parallel with the axis of the gumming-IQll C.

YThe trough Fis adjustable inthe ways E4, in order to vary the space between the edge F5 and the periphery of the gumming-roll, by means of an adjusting device consisting of a shaft G,y journaled in boxes attached to the plate F2 and provided at its opposite ends withcrank-pius G', entering holes in the ends of the links G2 G2, which are pivoted at their opposite ends upon studs Gprojecting from the outside of the plates D D. Attached to the shaft G is abifureated lever H, having a pivotal connection with a nut I, held upon a screw-threaded spindle J, provided with a hand-wheel J and having a swiveled connection with the plate F2. By rotating the screwthreaded spindle J the nut I is moved longitudinally thereon, thereby rocking theshaft Gr and by means of the crank-pins G, held in the links G2 G3, causing the troughFto slide toward or away from the gumming-roll C and regulating the space between the periphery of the gumming-roll C and the edge F5 of the bottom of the gum-box.

The gumming-roll C is rotated in the direction of the arrow l, Fig. 5, carrying aportion of the gum held in the gum-box through the space between the gu'mming-roll and the edge F5 of the gum-box. The plate F2, forming the bottom of the gum-box, is turned upwardly at F4 in order to bring the scraping edge F5 of the gum-box at some distance above the bot toni of thegum-box and present an inclined surface, so that any sediment or impurities IOO vzo

in the gum which are caught by the edge F5 will slide down the inclined surface F4 and become deposited upon the bottom of the gumbox. The edge Fiis brought into contact with the periphery of the gumming-roll C above the center of the roll, so that the upturned edge of the trou gh-bottom will lie in the plane approximately tangential to the curvature of the gumming-roll. The gumming-roll C forms one side of the gum-box, and the gum or paste held in the box lies in contact with the periphery of the gumming-roll and as the gumming-roll C rotates in the direction of the arrow l the gum or paste in the gum-box will be moved by its contact with the roll C in a slowly-moving current in the direction of the arrows 2, 3, 4, and 5, and the impurities which are presented to the edge F5 of the gum-box will fall down the inclined surface F4 and remain upon the plate F2, forming the bottom of the gum-box.

The upturned edge F4 of the bottom of the gum-box not only provides an inclined surface, but forms an obtuse angle with the bottom of the box adjacent to the gumming-rcll, so that the dow of gum'as it is scraped from the periphery of the roll will flow across the obtuse angle and over the bottom of the gumboX, thereby preventing au accumulation of sediment.

K denotes a table upon which paper is fed to the machine, and K K2 denote a pair of feed-rolls for feeding the paper forward from the table K, the lower feed-roll K heilig positively driven, and thempper feed-roll K2 rests upon the roll K. From the feedrolls K K2 the sheets of paper pass beneath and in contact with the under side of the gummingroll C and are detached therefrom by a series of wire fingers L, which separate the gummed paper from the roll. The paper from the gumming-roll C then passes over and is delivered upon a moving endless belt M. Those parts of the machine which are concerned in moving the paper and carrying it in contact with the guinming-wheel are now in use, and it is therefore unnecessary to describe them in detail.

The plates D D are provided at their lower edges with the outwardly-turned flanges N N, which rest upon brackets N N', projecting from the frame A, and the rear ends of the plates D D are journaled upon the shaft B of the gummin-g-roll, thereby holding the plates D D from longitudinal movement and allowing the entire gum-box to be swung over the top of the gumming-roll for cleaning or other purposes. The plates D D therefore constitute a swinging frame, which supports the gum-box and is hinged concentrically with the gumming-roll C, so that it can be swung over the roll C without changing the adjustment of the gum-box relatively to the gumming-roll, thereby allowing the gum-box to be raised to allow access to the feeding-rolls K K2 for the purpose of bringing the gumbox into a vertical position in order to clear its interior and .be returned to its normal position without affecting its relative position to thegumming-roll.

What I claim as my invention, and desire f terial is held in contact with vsaid roll with the j bottom of said box`provided with an upw wardly-turned edge in contact with the pe-v riphery of said roll and aboveits center, said upturnededge forming an obtuse angle with the bottom of the box, whereby a current is established within the gum-box and the sediment is deposited on the bottom of the box substantially as described.

2. The combination with a gum-box for holding adhesive material and open on one side, of a gumming-roll fitting the open side of said gum-box, whereby the gumming material is held in contact with said roll, with the bottom of said vbox provided with an upwardly-turned edge in contact with the periphery of said roll and above its center, said upturned edge forming an obtuse angle with the bottom of the box, whereby a current is established within the gum-box and the sediment is deposited on the bottom of the box and means for adjusting said upturned edge relatively to the periphery of said roll, substantially as described.

3. The combination with a gumming-roll of a gum-box comprising ends F connected by a vertical plate F2 forming the front side of the gum-box, said gumming-roll forming the opposite side of the gum-box and a horizontal plate F3 forming the bottom of the gum-box having an upturned edge in contact with the periphery of the gumming-roll and above its center and means for adjusting said bottom platerelatively to said roll independently of the ends of the gum-box, substantially as described.

4. In the gun1=box of a machine for apply ing adhesive material to paper, of the class described comprising a rotating gummingroll, the combination of plates forming the ends of the boX, and having curved edges adapted to fit the periphery of the gumming; roll, a trough comprising a vertical front plate, a horizontal bottom plate, and connecting end plates, said trough having a sliding motion independently of said box ends, and means for adjusting said trough relatively to the gumming-roll, substantially as described.

5. The combination in a gum-box of plates D, D provided with shoulders D2, plates F.,`

E resting upon said shoulders and forming the end of the gum-box, means for adjusting the plates E, E relatively to the plates D, D', ways on the inner sides of the plates E, E', a trough F sliding in said ways and means for adjusting said trough in said ways, substantially as described.

G. The combination with a rotating gum- IOO IIC

ming-roll of plates D, D', platesv E, E supported by said plates D, D', a trough F sup'- ported by said plates E, E'land-adjustable therein, said trough presenting an edge F5 to said roll, a shaft journaled in said trough and provided With crank-pins at its ends, links connecting said crank-pins with xed studs, a radial arm, carried by said rocking shaft, and means for adjusting the position of said radial arm and rocking said shaft, wherebysaid trough is adjusted relatively to said roll,

substantially as described.

7. The combination with a rotating gumming-roll of a frame hinged. concentrically Witnesses: A RUFUs B. FoWLnR, in. O. PRICE. 

